N-Benzyl-2,3-trans-Carbamate-Bearing Glycosyl Donors for 1,2-cis-Selective Glycosylation Reactions
作者:Shino Manabe、Kazuyuki Ishii、Yukishige Ito
DOI:10.1002/ejoc.201001278
日期:2011.1
Glycosyldonors for the preparation of 1,2-cis glycosides of amino sugars have been developed. The 2,3-trans-cyclic-carbamate-carrying glycosyldonors were readily prepared from the corresponding known trichloroethyl carbamate protected amino sugars under standard hydroxy group benzylation conditions. The donors exhibit high 1,2-cis stereoselectivity towards secondary hydroxy group substrates. In the